1. Date.prototype.toLocaleDateString

    Date method to generate a language sensitive representation of a given date, formatted based on a specified locale and options.

  2. High Resolution Time API

    Method to provide the current time in sub-millisecond resolution and such that it is not subject to system clock skew or adjustments. Called using `performance.now()`

  3. matches() DOM method

    Method of testing whether or not a DOM element matches a given selector. Formerly known (and largely supported with prefix) as matchesSelector.

  4. Resource Timing (basic support)

    Method to help web developers to collect complete timing information related to resources on a document.

  5. TLS 1.3

    Version 1.3 (the latest one) of the Transport Layer Security (TLS) protocol. Removes weaker elliptic curves and hash functions.

  6. User Timing API

    Method to help web developers measure the performance of their applications by giving them access to high precision timestamps.

  7. authenticatorattestationresponse api

  8. authenticatorattestationresponse api: attestationobject

  9. authenticatorattestationresponse api: getauthenticatordata

  10. authenticatorattestationresponse api: getpublickey

  11. authenticatorattestationresponse api: getpublickeyalgorithm

  12. authenticatorattestationresponse api: gettransports

  13. baseaudiocontext api: createstereopanner

  14. htmlelement api: attributestylemap

  15. mathmlelement api: attributestylemap

  16. readablebytestreamcontroller api

  17. readablebytestreamcontroller api: byobrequest

  18. readablebytestreamcontroller api: close

  19. readablebytestreamcontroller api: desiredsize

  20. readablebytestreamcontroller api: enqueue

  21. readablebytestreamcontroller api: error

  22. rtcpeerconnection api: getremotestreams

  23. sourcebuffer api: `updatestart` event

  24. sourcebuffer api: `updatestart` event: available in workers

  25. svgelement api: attributestylemap

  26. urlpattern api: test

  27. xrframe api: gethittestresults

  28. xrframe api: gethittestresultsfortransientinput

  29. xrframe api: getlightestimate

  30. xrhittestresult api

  31. xrhittestresult api: createanchor

  32. xrhittestresult api: getpose

  33. xrhittestsource api

  34. xrhittestsource api: cancel

  35. xrlightestimate api

  36. xrlightestimate api: primarylightdirection

  37. xrlightestimate api: primarylightintensity

  38. xrlightestimate api: sphericalharmonicscoefficients

  39. xrsession api: requesthittestsource

  40. xrsession api: requesthittestsourcefortransientinput

  41. xrtransientinputhittestresult api

  42. xrtransientinputhittestresult api: inputsource

  43. xrtransientinputhittestresult api: results

  44. xrtransientinputhittestsource api

  45. xrtransientinputhittestsource api: cancel

  46. javascript built-in: date: todatestring

  47. javascript built-in: date: tolocaledatestring

  48. javascript built-in: date: tolocaledatestring: `locales` parameter

  49. javascript built-in: date: tolocaledatestring: `options` parameter

  50. javascript built-in: regexp: test